Home / 13,110.67-19,665.96-5,319.46

Finding the Fourth Proportional to 13,110.67, 19,665.96 and 5,319.46

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Solution

The fourth proportional to 13,110.67, 19,665.96 and 5,319.46 is: 7,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.67 : 19,665.96 = 5,319.46 : x
  2. Step 2: Convert to fraction form
    13,110.67/19,665.96 = 5,319.46/x
  3. Step 3: Cross multiply
    13,110.67x = 19,665.96 × 5,319.46
  4. Step 4: Simplify right side
    13,110.67x = 104,612,287.58
  5. Step 5: Solve for x
    x = 104,612,287.58/13,110.67
  6. Step 6: Final answer
    x = 7,979.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.